academic
back
balls
blackboard
board
book
books
chalkboard
class
classroom
college
education
evening
exam
experiment
experimenting
graduate
green
hours
late
learning
lesson
long
looking
man
meditating
meditation
night
physicist
physics
preparation
preparing
reading
research
revising
school
science
student
study
studying
teacher
test
testing
textbook
textbooks
trainee
training
university